HEAT EXCHANGER

This heat exchanger is equipped with heat exchanger tubes 30 each with both flat surfaces 33 and 35 thereof formed with wavelike recessed and protruding portions 34, 36. The wavelike recessed and protruding portions 34 , 36 are formed with top lines 34a, 36a and bottom lines 34b, 36b alternating wit...

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Bibliographische Detailangaben
Hauptverfasser: WAKE TSUNEHITO, SHIKAZONO NAOKI, YANAGIMOTO JUN, ZEISE PASCAL
Format: Patent
Sprache:chi ; eng
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Beschreibung
Zusammenfassung:This heat exchanger is equipped with heat exchanger tubes 30 each with both flat surfaces 33 and 35 thereof formed with wavelike recessed and protruding portions 34, 36. The wavelike recessed and protruding portions 34 , 36 are formed with top lines 34a, 36a and bottom lines 34b, 36b alternating with each other. The top lines 34a, 36a and the bottom lines 34b, 36b each have a shape such that V shapes are horizontally connected, each of the V shapes having a curved bending portion. Thus, it is possible to reduce stress concentration on the bending portions during press processing compared to heat exchanger tubes that have the V shapes of top lines and bottom lines horizontally connected to have acute-angled bending portions. As a result, when the amplitudes of the wavelike recessed and protruding portions 34, 36 are made equal, the yields during press processing can be enhanced, and when the yields during press processing are made equal, the amplitudes of the wavelike recessed and protruding portions 34 , 36 c